bug summary: Press button "corner". Only see 3 yellow rectangles in the corners of the scroll pane.

Testsuite name: swing-reg
JDK/JRE tested: jdk-7-ea-bin-b110-windows-i586-16_sep_2010.exe
OS/architecture: x86
Reproducible: Always
Reproducible on machine: winxp-i586
Is it a platform specific regression: N
Is it a Regression: N
Test run log location: http://jsqalab.sfbay.sun.com/results/Evergreen/7/1.7.0b110/swing/winxppro-sp3-i586/
Steps to reproduce:
1. download ws(7_swing_reg.tar) & jct3.2 tool then unzip
2. install test jdk
3. modify argument file (reg_swing.sh) & testlist
4. use "ksh reg_swing.sh" command and then lunch the java test harness to run test cases.

instruction:
Press button "corner". You should see 4 yellow rectangles in the corners of the scroll pane.

actual behavior:
Press button "corner". Only see 3 yellow rectangles in the corners of the scroll pane.

verify:
None.